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What is the Least Common Multiple of 97972 and 97991?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 97972 and 97991 is 9600374252.

LCM(97972,97991) = 9600374252

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Least Common Multiple of 97972 and 97991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 97972 and 97991, than apply into the LCM equation.

GCF(97972,97991) = 1
LCM(97972,97991) = ( 97972 × 97991) / 1
LCM(97972,97991) = 9600374252 / 1
LCM(97972,97991) = 9600374252

Least Common Multiple (LCM) of 97972 and 97991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 97972 and 97991. First we will calculate the prime factors of 97972 and 97991.

Prime Factorization of 97972

Prime factors of 97972 are 2, 7, 3499. Prime factorization of 97972 in exponential form is:

97972 = 22 × 71 × 34991

Prime Factorization of 97991

Prime factors of 97991 are 29, 31, 109. Prime factorization of 97991 in exponential form is:

97991 = 291 × 311 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 97972 and 97991.

LCM(97972,97991) = 22 × 71 × 34991 × 291 × 311 × 1091
LCM(97972,97991) = 9600374252